Spontaneous Partitioning of Californium from Curium: Curious Cases from the Crystallization of Curium Coordination Complexes
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https://figshare.com/articles/dataset/Spontaneous_Partitioning_of_Californium_from_Curium_Curious_Cases_from_the_Crystallization_of_Curium_Coordination_Complexes/2102296
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资源简介：
The
reaction of 248CmCl3 with excess 2,6-pyridinedicarboxylic
acid (DPA) under mild solvothermal conditions results in crystallization
of the tris-chelate complex Cm(HDPA)3·H2O. Approximately half of the curium remains in solution at the end
of this process, and evaporation of the mother liquor results in crystallization
of the bis-chelate complex [Cm(HDPA)(H2DPA)(H2O)2Cl]Cl·2H2O. 248Cm is the
daughter of the α decay of 252Cf and is extracted
in high purity from this parent. However, trace amounts of 249,250,251Cf are still present in all samples of 248Cm. During the
crystallization of Cm(HDPA)3·H2O and [Cm(HDPA)(H2DPA)(H2O)2Cl]Cl·2H2O,
californium(III) spontaneously separates itself from the curium complexes
and is found doped within crystals of DPA in the form of Cf(HDPA)3. These results add to the growing body of evidence that the
chemistry of californium is fundamentally different from that of earlier
actinides.
创建时间：
2017-10-25
